Chapter 1, Problem 1.67E

A student checked the accuracy of two standard top-loading balances by testing them with a standard 5.000-g mass. The results were as follows: Balance 1: 4.99 g, 5.04 g, 5.03 g, 5.01 g Balance 2: 4.97 g, 4.99 g, 4.95 g, 4.96 g Calculate the average values for balances 1 and 2 and calculate the percent error for each. Which balance is more accurate?

perform the following calculation, reporting your answer to the correct number of significant figures and with the correct unit. 123.4 g x (1 kg/1000 g)=

I think I did a calculation wrong but I am having trouble understanding significant figures. In this problem, I am calculation the density of water from my previous calculations mass= 7.359g and volume=7.8mL. So I then divided 7.359g by 7.8mL to find density and got (.9434615385) on my calculator which I then turned into (.94) because I believe there should be 2 significant figures. Is (.94) correct or should 1.4 be the final answer?

The engine in a boat has a displacement of 350 inches3? what is the displacement of this engine in ft3? in cm3? in liters? show steps and correctly rounded answers here

A sample of gold alloy has a mass of 9.3 kg. It is determined that 0.6 kg of the alloy is actually made up of copper and zinc, with the remainder being gold. Calculate the percentage of this gold in the alloy? Express your answer to the nearest percentage (nearest ones place). Hint: calculate the mass in grams of the gold in the alloy, divide by the whole mass of the alloy, and multiply by 100%. Round your answer to two significant figures. (I had to alter the wording of this question since it wasn't calculating significant figures properly, so if you got it wrong because of significant figures you can assume you probably actually got it correct.)

the question asks to convert it to Japanese yen, I did so and wasn't sure what the sig figs should come out to be, I figured it to be four sig figs because when finding the mass in grams, we multiply by 10.49 which has four sig figs and I carried it through to the end, reaching 2.1935x105 Japanese Yen. Is this correct in terms of answers AND in terms of significant figures?

For each of the following numbers, determine the number ofsignificant figures it contains, rewrite it without using scientific notation, and determine thenumber of significant figures in the result. (a) 3.050 × 10–4 , (b) 4.3200 × 102 , (c) 8.001 × 10–7, (d) 2.006080 × 105 , (e) 1.503 × 10–5 , (f) 6.07510 × 104

(5.985 mmmm )(7.3 mmmm ) Complete the operation and express the answer with the appropriate number of significant figures and units.   26.0 gg  / 2.3 mLmL Complete the operation and express the answer with the appropriate number of significant figures and units.   18.89 gg  + 0.0215 gg Complete the operation and express the answer with the appropriate number of significant figures and units.   36.82 gg + 17 mgmg Complete the operation and express the answer with the appropriate number of significant figures and units.

After a 5.87g sample of white metal has been added to the water in a 10mL graduated cylinder, the density of the white metal is 9.5g/mL and the new water level is 7.3mL. What was the water level in the cylinder before the sample was added?